printing the query plan?
Hi,
I want to print the query-plan that will be used before the execution of the query. Therefore put this line at the beginning of the ExecutorStart() function located in execMain.c :
print_plan(queryDesc->plantree,queryDesc->parsetree);
However, it did not work. What I want to ask is:
1. Does postgresql call ExecutorStart()-ExecutorRun-ExecutorEnd functions each time a new query is invoked? If so, why the above line did not work?
2. Can I print just a dummy string inside ExecutorStart() function and will it be shown before the result of the query? Because I also tried this and it also did not work.
Thanks a lot.
Baran
On Fri, Oct 27, 2006 at 01:58:21AM -0700, dakotali kasap wrote:
Hi,
I want to print the query-plan that will be used before the execution
of the query. Therefore put this line at the beginning of the
ExecutorStart() function located in execMain.c :print_plan(queryDesc->plantree,queryDesc->parsetree);
print_plan writes to stdout, did you check where that is redirected to?
Also, I thought there was a logging option to print plans, but I might
be wrong about that.
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
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From each according to his ability. To each according to his ability to litigate.
Hi,
I want to print the query-plan that will be used before the execution
of the query. Therefore put this line at the beginning of the
ExecutorStart() function located in execMain.c :print_plan(queryDesc->plantree,queryDesc->parsetree);
print_plan writes to stdout, did you check where that is redirected to?
But how can I find where stout is redirected to?
Baran
Import Notes
Resolved by subject fallback
Try your logfile... the one specified by the '-l' option while starting the
server.
On 10/27/06, dakotali kasap <dakotalidavid@yahoo.com> wrote:
But how can I find where stout is redirected to?
Baran
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